Do you dream of working on the biggest of trucks and heavy machinery?

Learn how to become a diesel mechanic at one of the top state-of-the-art diesel mechanic schools in the country.

Our hands-on Diesel Technology program teaches how to inspect, maintain and repair different types of diesel engines for a variety of industries.

Is diesel mechanic training right for you?

Diesel Technology (11)You’re a hard worker who doesn’t mind getting hands-on. You’d rather be at work in a shop than at a desk.

You like to figure out how things work – taking them apart and putting them back together so that they run better than ever.

You want your education to prepare you for an in-demand job in a growing industry.

Does this sound like you? Learn how to become a diesel mechanic at one of the most state-of-the-art diesel mechanic schools in the country. The training at Ranken meets key industry standards, including Automotive Service Excellence (ASE) Certification.

Interested in seeing more of our Diesel facilities? Take an interactive 360° virtual tour of Ranken Technical College’s DIESEL department.

Why choose Ranken for diesel mechanic training?

Diesel Technology (10)Our Diesel Technology program provides you with hands-on diesel mechanic training at Ranken-West and Ranken-Southeast.

Wondering how to become a diesel mechanic? With a projected steady increase in new diesel technician jobs in the next ten years, the U.S. Department of Labor notes that employers prefer applicants who have completed postsecondary training programs in diesel engine repair.

Ranken’s diesel mechanic training program was created to meet the growing need for heavy-duty service professionals in the transportation industry.

The program is Automotive Service Excellence (ASE) Certified, and it will prepare graduates to be career-ready diesel service technicians.

Paul P. Flanagan

Adjunct Instructor, Evening School - Wentzville

AS in Diesel Technology,
Laramie County Community College
Certification:
ASE A4 Steering and Suspension

Brian S. Bowen

Instructor, Full Time - Perryville

Training in diesel/vehicle mechanics, heavy
equipment, arc welding
Certifications:
Wabco/Haldex/Bendix ABS
Eaton Fuller/Meritor Rockwell Transmissions
Meritor/Rockwell Differentials
Eaton/Spicer Differentials

L. Sam Worley

Instructor, Full Time - Perryville

Training in welding, machining, auto body,
aviation metal
Certifications:
ASE T4 Brakes
ASE T5 Suspension
ASE T8 Preventive Maintenance
Class A CDL with PN Endorsement
REMA-TECH Tire Certification
R12/134 Refrigerant MACS Certification

Justin R. Eason

Instructor, Full Time - Perryville

Advanced Diesel Technology Diploma,
Wyotech
Certifications:
Kenworth Course 100
EPA 608, 609 A/C Certified
ISB6.7 CM2250 Qualification (EPA 2010)
ISC8.3 CM2250, ISL9 CM2250 Qualification
(EPA 2010)
ISX12 CM2250/ISX11.9 CM2250
Qualification (EPA 2010)
ISX12 CM2350 X102 Qual. (EPA 2013)
ISX15 CM2250 Qualification (EPA 2010)
ISX15 CM2350 X101 Qualification (EPA 2013)
X15 CM2350 X114B, X15 CM2350 X116B
Qualification (EPA 2017)
B6.7 CM2350 B121B Qual. (EPA 2017)
ISB6.7 CM2350 B101 Qual. (EPA 2013)
ISL9 CM2350 L101 Qualification (EPA 2013)
L9 CM2350 L116B, L9 CM2350 L123B
Qualification (EPA 2017)
X15 CM2450 X124B Qual. (EPA 2020)
ISB CM2150 Qualification (EPA 2007)
ISC CM2150, ISL CM2150 Qual. (EPA 2007)
B6.7 CM2450 B155B Qual. (EPA 2021)
L9 CM2450 L126B Qualification (EPA 2021)
X15 CM2450 X134B Qual. (EPA 2021)

Douglas J. Waldon

Instructor, Full Time - Wentzville

Certifications:
ASE Master Medium/Heavy Truck Tech
ASE T2 Engines
ASE T3 Drivetrain
ASE T4 Brakes
ASE T5 Suspension
ASE T6 Electrical/Electronic Systems
ASE T7 HVAC
ASE T8 Preventive Maintenance
Allison 1000/2000, 3000/4000 Service and
Overhaul
CNG Systems (Cummins, Paccar, Detroit Diesel,
Navistar)
Cummins Insite ECM Troubleshooting and
Calibration
Cummins Aftertreatment SCR/NoX Catalyst
System Troubleshooting
Cummins XPI & X-Series IFSM Fuel Systems
Diagnostics
Cummins ISB 5.9, 6.7 ISC 8.3, ISL 9, ISX 12, 15, K-19,
L-10, M-11, N-14
Detroit Diesel DD-8, 11,13, 15, 16 Heavy-duty and
Medium-duty Engine Systems
Detroit Diesel Gen-5 Engine
Detroit Axle Systems
DT12 Systems Transmission Systems Electronic
Systems
Detroit Assurance
Detroit Diesel Fuel & Aftertreatment/NoX Systems
Analyzing and Troubleshooting
Electrical Troubleshooting Systems (Cummins,
Detroit Diesel, Paccar, Navistar) Emissions
Systems
EPA 609, 134-A Freon Recovery
EPA 07, EPA 10, EPA 2013 Aftertreatment
(Cummins, Detroit Diesel, Paccar, Navistar)
Emissions Systems
Fleet Customer Systems
GHG14 & GHG 17 DD Series, Cummins, Paccar,
Navistar Systems Heavy Duty Truck Emissions
System
Freightliner M-2 Systems
TBI Electrical and Vehicle Systems
Wabco, Meritor, Bendix, & Peterbilt ABS System
Western Star System
Paccar Davie-4 Electronics Troubleshooting
Navistar DLB Electronics Technology
Peterbilt Traction Control Systems
Freightliner, Navistar, Peterbilt Automated,
Standard Transmissions and Clutch Service
Paccar Diesel Engine and Fuel Systems Basics

Tim Chandler

Instructor, Full Time - Wentzville

Certifications:
ASE T2 – T8 Master Med/Heavy Truck Technician
ASE C1 Service Consultant
ASE E1 Truck Equipment Installation and Repair
Cummins Advanced Diesel Technology
855/N14 Maintenance and Overhaul
Allison 3000/4000 Service and Overhaul
Forklift Certified

Brien J. Dover

Department Chair & Instructor, Full Time - Perryville

Certificate in Diesel Truck and Heavy
Equipment Technology,
Ranken Technical College
Certifications:
R-12/134-A Refrigerants/HVAC – MACS
Class B CDL License – State of Missouri

Louis E. Waite

Instructor – Commercial Driver License (CDL), Full Time - Wentzville

MS in Human Resource Management,
Lindenwood University
BA in Human Resource Management,
Lindenwood University
Certification:
Class A CDL License with NT Endorsements
(Doubles, Triples, and Tankers) – State of
Missouri

Shawn D. Ray

Department Chair & Instructor, Full Time - Wentzville

BS in Applied Management, in progress,
Ranken Technical College
Certifications:
ISX15, X15 – Cummins
2007 Heavy Duty Acert – Caterpillar
Paccar Engine Training MX
Paccar 2010 Emissions
Peterbilt Electrical T/S
ASE L2 Advanced Level Specialist
ASE T2 Engines
ASE T3 Transmission
ASE T4 Brakes
ASE T5 Suspension
ASE T6 Electrical
ASE T7 HVAC
ASE T8 Preventive Maintenance
EPA 07, EPA 10, GHG 14 – Detroit Diesel
Class B CDL
609A Certified
Thermo King Trainer Certified

Taylor P. Clark

Instructor, Full Time - Wentzville

Instructor, Full Time
Certificate in Automotive,
Kent Career Technical Institute Certifications:
ASE Master Medium/Heavy Truck
Technician
EPA 608 and 609 Universal Technician –
Mainstream Engineering
Carrier #1407 Mod 1 – Carrier Transicold
DD EPA 07 – Detroit Diesel
Class B CDL License – State of Missouri

Diesel technicians today must be prepared to work on a variety of systems, including air brakes, hydraulics, and air conditioning as well as the high-end multiplexed network of computers and electronics.

With Ranken’s focus on hands-on training and modern industry-standard technologies, Diesel Technology students will become proficient in a range of skills and equipment, including:

  • Rebuilding diesel engines
  • Servicing transmission assemblies in heavy-duty trucks
  • Servicing brake systems, including air brakes and anti-lock systems
  • Performing preventative maintenance inspections and services

The program is Automotive Service Excellence (ASE) Certified; Students who complete the program will be able to enter the job market as confident, career-ready diesel service technicians.

The program will prepare students to take the Heavy Duty Truck ASE tests.

Lauren Wimpee

Department: Alumni Automotive
Service Writer @ Schaefer Autobody

2021 Automotive Collision Repair Technology
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Jason Broeker

Department: Alumni Automotive
Service Manager @ Lou Fusz Subaru

1999 Automotive Maintenance Technology
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Adam Blattel

Department: Alumni Automotive
HVAC Technician @ Scott Air Force Base

2020 HVAC and 2003 Automotive Maintenance Technology
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Scott Griffin

Department: Alumni Automotive
Owner and General Manager @ Griffin Automotive Design & Collision Center

1992 Automotive Collision Repair Technology
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Travis Oliver

Department: Alumni Automotive
Head Painter @ American Automotive, St. Louis

2006 Automotive Collision Repair Technology
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Oliver Gilmore

Department: Alumni Automotive
Collision Repair Technician @ American Automotive

2015 Automotive Collision Repair Technology
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Brian Imboden

Department: Alumni Automotive
Aircraft Painter @ Boeing

2017 Automotive Collision Repair Technology
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Kyle Neely

Department: Alumni Automotive
Technician @ Schaefer Autobody Centers

2007 Automotive Collision Repair Technology
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John Nance

Department: Alumni Automotive
Owner/Operator of All The Details

2005 Automobile Collision Repair Technology
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Tyler Wagner

Department: Alumni Automotive
Automotive Collision Technician @ South County Collision Center

2020 Automotive Collision Repair Technology
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Cameron Anderson

Department: Alumni Automotive
Automotive Maintenance Technician @ Machens Ford Dealership

2020 Automotive Maintenance Technology
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Jacob Bailey

Department: Alumni Automotive
Automotive Service Advisor @ Machens Ford Dealership

2020 Automotive Maintenance Technology
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Gabe Ware

Department: Alumni Automotive
Diesel Mechanic @ Republic Services

2020 Automotive Diesel Technology
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Richard Maor

Department: Alumni Automotive
Automotive Technician @ Morley Performance LLC

May 2020 Automotive High Performance Racing Technology
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Jared Wilmas

Department: Alumni Automotive
Service Technician @ Bommarito Chevrolet

2020 Automotive Maintenance Technology
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Chazzerene ‘Chazz’ Howard

Department: Alumni Automotive
Service Advisor @ Caliber Collision, Hampton, Virginia

2019 Collision Repair Technology
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Blake Forward

Department: Alumni Automotive
Automotive Maintenance Technician @ Machens Ford Dealership

2019 Automotive Maintenance Technology
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Trace Gray

Department: Alumni Automotive
Technician @ Firestone Complete Auto Care

2018 Automotive High Performance Racing Technology
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Jacob Crum

Department: Alumni Automotive
Ford Certified Senior Master Technician @ Machens Ford Dealership

2017 Automotive Maintenance Technology; 2018 BS in Applied Management
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Ross Stromberg

Department: Alumni Automotive
Lead Technician @ Firestone Complete Auto Care

2014 Automotive Maintenance Technology
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Katie Beck Schuler

Department: Alumni Automotive
Lead Refinish Technician @ Car Craft Auto Body

2013 Automotive Collision Repair Technology
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Kyle Neely

Department: Alumni Automotive
Technician @ Schaefer Autobody Centers

2007 Automotive Collision Repair
Read More

Joseph Siekmann

Department: Alumni Automotive


1971 Automotive Mechanical & Automotive Collision
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Peter Kostecki

Department: Alumni Automotive


1971 Automotive Maintenance
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John Calaway

Department: Alumni Automotive


1971 Automotive Technology
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Michael F. Buckley

Department: Alumni Automotive


1971 Automotive Diesel Technology
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Brad Francis

Department: Alumni Automotive
Owner, Certified Performance and Auto Repair, Inc.

2001 Automotive Maintenance Technology
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Ashis Gurung

Department: Alumni Automotive
Auto Body Technician @ Gapsch Carstar Collision Center

May 2020 Automotive Collision Repair Technology
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Andrew Fields

Department: Alumni Automotive
Automotive Technician @ Rob Sight Ford

May 2017 Automotive Maintenance Technology
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